Portal Home
  [  Return to Record   ]

Carbon and nitrogen fixation rates from microbial mat populations in moraine ponds on the McMurdo Ice Shelf

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Carbon and nitrogen fixation rates from microbial mat populations in moraine ponds on the McMurdo Ice Shelf
Description:
Abstract:
Carbon and nitrogen fixation experiments were conducted on mats collected from 10 of the ponds on the McMurdo Ice Shelf near Bratina Island. Nitrogen fixation was determined via reduction of acetylene gas and gas chromatography. Carbon fixation was measured via oxygen evolution and dissolved inorganic carbon uptake. Raw data for carbon fixation was collected in the field and was corrected for biomass (chlorophyll a) and surface area before comparing results between ponds. Two of the ponds differed in type of microbial mat present. One was a benthic mixed community microbial mat while the other was a lift-off mat comprised almost exclusively of the nitrogen fixing bacteria Nostoc. Species composition and community structure were also determined.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Howard-Williams, C. Hawes, I. Ecological processes in Antarctic inland waters: interactions between physical processes and the nitrogen cycle. Antarctic science 19(2): 205-217, 2007.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050121
Ending_Date: 20050129
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 165.3333
East_Bounding_Coordinate: 165.3333
North_Bounding_Coordinate: -78.0
South_Bounding_Coordinate: -78.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > CARBON
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > NITROGEN
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA > CYANOBACTERIA (BLUE-GREEN ALGAE)
Theme_Keyword: LTER > LONG-TERM ECOLOGICAL RESEARCH
Theme_Keyword: LGP > LATITUDINAL GRADIENT PROJECT
Theme_Keyword: EBA > EVOLUTION AND BIODIVERSITY IN THE ANTARCTIC
Theme_Keyword: BIOTA
Theme_Keyword: INLAND WATERS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA > BRATINA ISLAND
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: BRIAN SORRELL
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NIWA
Address: PO BOX 11-115
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 343 7802
Contact_Facsimile_Telephone: +64 3 348 5548
Contact_Electronic_Mail_Address: b.sorrell@niwa.co.nz
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
Back to Top
Spatial_Reference_Information:
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NZ/NZAI/ANZ > Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
Contact_Person: SHULAMIT GORDON
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Resource_Description: K081_2004_2005_NZ_4
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.antarcticanz.govt.nz/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.niwa.co.nz/rc/antarctica/
Access_Instructions:
NIWA's Antarctic programs
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20081005
Metadata_Review_Date: 20081014
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: CEISHA POIROT
Contact_Person_Primary:
Contact_Person: SHULAMIT GORDON
Contact_Position: DIF AUTHOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: c.poirot@antarcticanz.govt.nz
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Back to Top

  [  Return to Record   ]

Link to NASA website
Responsible NASA Official:   Dr. Stephen Wharton
Webmaster:   Monica Holland   ·  Contact GCMD User Support for assistance